... for about a year so not new to the 90 mg a day , I resently noticed that I have been going into a head bobing thing that I can't stop If i stop and sit down for 5 minutes I am out cold I have never been like this before I allso started doing this when I'm driving this is what I am most conserned about what can I do to maybe change this I dont take any other pills for my back Paine just the methadone I have tryed changing my diet and taking vitamins but I still bob thanks for your responses ahead of time